Faithful Temporal Question Answering over Heterogeneous Sources

arXiv:2402.15400v1 Announce Type: cross
Abstract: Temporal question answering (QA) involves time constraints, with phrases such as "... in 2019" or "... before COVID". In the former, time is an explicit condition, in the latter it is implicit. State-of-the-art methods have limitations along three dimensions. First, with neural inference, time constraints are merely soft-matched, giving room to invalid or inexplicable answers. Second, questions with implicit time are poorly supported. Third, answers come from a single source: either a knowledge base (KB) …

abstract art arxiv constraints covid cs.cl cs.ir dimensions inference limitations question question answering state temporal type